!function(x){
	function w(){
		var a=r.getBoundingClientRect().width;
		a/v>640&&(a=640*v),x.rem=a/16,r.style.fontSize=x.rem+"px"
	}
	var v,u,t,s=x.document,r=s.documentElement,q=s.querySelector('meta[name="viewport"]'),p=s.querySelector('meta[name="flexible"]');
	if(q){
		var o=q.getAttribute("content").match(/initial\-scale=(["']?)([\d\.]+)\1?/);
		o&&(u=parseFloat(o[2]),v=parseInt(1/u))
	}else{
		if(p){
			var o=p.getAttribute("content").match(/initial\-dpr=(["']?)([\d\.]+)\1?/);
			o&&(v=parseFloat(o[2]),u=parseFloat((1/v).toFixed(2)))
		}
	}
	if(!v&&!u){
		var n=(x.navigator.appVersion.match(/android/gi),x.navigator.appVersion.match(/iphone/gi)),v=x.devicePixelRatio;v=n?v>=3?3:v>=2?2:1:1,u=1/v
	}
	if(r.setAttribute("data-dpr",v),!q){
		if(q=s.createElement("meta"),q.setAttribute("name","viewport"),q.setAttribute("content","initial-scale="+u+", maximum-scale="+u+", minimum-scale="+u+", user-scalable=no"),r.firstElementChild){
			r.firstElementChild.appendChild(q)
		}else{
			var m=s.createElement("div");m.appendChild(q),s.write(m.innerHTML)
		}
	}x.dpr=v,x.addEventListener("resize",function(){
		clearTimeout(t),t=setTimeout(w,300)
	},!1),x.addEventListener("pageshow",function(b){
		b.persisted&&(clearTimeout(t),t=setTimeout(w,300))
	},!1),"complete"===s.readyState?s.body.style.fontSize=12*v+"px":s.addEventListener("DOMContentLoaded",function(){s.body.style.fontSize=12*v+"px"},!1),w()
}(window);